US10324333B2 - Color polarizing film, antireflective film and display device - Google Patents
Color polarizing film, antireflective film and display device Download PDFInfo
- Publication number
- US10324333B2 US10324333B2 US15/435,908 US201715435908A US10324333B2 US 10324333 B2 US10324333 B2 US 10324333B2 US 201715435908 A US201715435908 A US 201715435908A US 10324333 B2 US10324333 B2 US 10324333B2
- Authority
- US
- United States
- Prior art keywords
- substituted
- unsubstituted
- nanometers
- dichroic dye
- polarizing film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003667 anti-reflective effect Effects 0.000 title claims description 33
- 238000010521 absorption reaction Methods 0.000 claims abstract description 117
- 229920000642 polymer Polymers 0.000 claims abstract description 88
- 230000010287 polarization Effects 0.000 claims abstract description 33
- 239000000975 dye Substances 0.000 claims description 230
- 125000000217 alkyl group Chemical group 0.000 claims description 90
- -1 polyoxymethylene Polymers 0.000 claims description 45
- 238000002834 transmittance Methods 0.000 claims description 45
- 229910052739 hydrogen Inorganic materials 0.000 claims description 43
- 239000001257 hydrogen Substances 0.000 claims description 43
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 42
- 239000004743 Polypropylene Substances 0.000 claims description 39
- 229920001155 polypropylene Polymers 0.000 claims description 39
- 239000000126 substance Substances 0.000 claims description 39
- 150000001875 compounds Chemical class 0.000 claims description 29
- 239000000155 melt Substances 0.000 claims description 23
- 125000000304 alkynyl group Chemical group 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 22
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims description 21
- 229920001577 copolymer Polymers 0.000 claims description 20
- 239000004698 Polyethylene Substances 0.000 claims description 15
- 229920000573 polyethylene Polymers 0.000 claims description 15
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 3
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004695 Polyether sulfone Substances 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 3
- 125000000732 arylene group Chemical group 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920001230 polyarylate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920006393 polyether sulfone Polymers 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920000193 polymethacrylate Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 3
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 104
- 239000000758 substrate Substances 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 10
- 238000002156 mixing Methods 0.000 description 8
- 238000002835 absorbance Methods 0.000 description 7
- 125000002529 biphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C12)* 0.000 description 7
- 238000005538 encapsulation Methods 0.000 description 7
- 229910052736 halogen Inorganic materials 0.000 description 7
- 150000002367 halogens Chemical class 0.000 description 7
- 125000001624 naphthyl group Chemical group 0.000 description 7
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 239000003086 colorant Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 4
- 0 C.C.[1*]CN=NCN=NCN=NC1=CC=C([2*])S1 Chemical compound C.C.[1*]CN=NCN=NCN=NC1=CC=C([2*])S1 0.000 description 3
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 125000005650 substituted phenylene group Chemical group 0.000 description 3
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000004414 alkyl thio group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 150000002430 hydrocarbons Chemical group 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000001043 yellow dye Substances 0.000 description 2
- XIHDGKAJSXASGS-UHFFFAOYSA-N CC1=CC(Cl)=C(N=NC2=CC=C(N=NC3=CC=C(N(C)C)C=C3)C=C2)C=C1.CC1=CC=C(N=NC2=CC=C(N=NC3=C4C=CC=CC4=C(N=NC4=CC=C(N5CCCCC5)S4)C=C3)C=C2)C=C1.CC1=CC=C(N=NC2=CC=C(N=NC3=CC=C(N=NC4=CC=C(N5CCCCC5)S4)C=C3Cl)C=C2)C=C1.CCCCC1=CC=C(N=NC2=CC=C(N=NC3=CC=C(C)C=C3)C=C2)C=C1 Chemical compound CC1=CC(Cl)=C(N=NC2=CC=C(N=NC3=CC=C(N(C)C)C=C3)C=C2)C=C1.CC1=CC=C(N=NC2=CC=C(N=NC3=C4C=CC=CC4=C(N=NC4=CC=C(N5CCCCC5)S4)C=C3)C=C2)C=C1.CC1=CC=C(N=NC2=CC=C(N=NC3=CC=C(N=NC4=CC=C(N5CCCCC5)S4)C=C3Cl)C=C2)C=C1.CCCCC1=CC=C(N=NC2=CC=C(N=NC3=CC=C(C)C=C3)C=C2)C=C1 XIHDGKAJSXASGS-UHFFFAOYSA-N 0.000 description 1
- HQKPDKMQADNPFV-UHFFFAOYSA-N CC1=CC=C(N=NC2=CC=C(N=NC3=CC=C(N=NC4=CC=C(N5CCCCC5)S4)C=C3Cl)C=C2)C=C1.CCCCC1=CC=C(N=NC2=CC=C(N=NC3=CC=C(OCCC)C=C3)C=C2)C=C1 Chemical compound CC1=CC=C(N=NC2=CC=C(N=NC3=CC=C(N=NC4=CC=C(N5CCCCC5)S4)C=C3Cl)C=C2)C=C1.CCCCC1=CC=C(N=NC2=CC=C(N=NC3=CC=C(OCCC)C=C3)C=C2)C=C1 HQKPDKMQADNPFV-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 125000002933 cyclohexyloxy group Chemical group C1(CCCCC1)O* 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 229920001600 hydrophobic polymer Polymers 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133533—Colour selective polarisers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/16—Trisazo dyes
- C09B31/26—Trisazo dyes from other coupling components "D"
- C09B31/28—Heterocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
- C09B67/0046—Mixtures of two or more azo dyes
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
-
- H01L51/5281—
-
- H01L51/5293—
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/868—Arrangements for polarized light emission
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8793—Arrangements for polarized light emission
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K2323/03—Viewing layer characterised by chemical composition
- C09K2323/031—Polarizer or dye
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
-
- G02F2001/133638—
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/38—Anti-reflection arrangements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/01—Number of plates being 1
-
- Y10T428/1041—
Definitions
- a color polarizing film, an antireflective film, and a display device are disclosed.
- a display device such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) includes a polarizing plate attached to the outside of a display panel.
- the polarizing plate only transmits light of a specific wavelength and absorbs or reflects any other light of a different wavelength, thereby controlling the direction of incident light on the display panel or light emitted from the display panel.
- the polarizing plate may be combined with a compensation film, and thus, function as an antireflective film preventing reflection of externally incident light.
- the antireflective film may be formed on one side or both sides of a display device, and thus, have an influence on visibility of the display device.
- An embodiment provides a color polarizing film capable of realizing various reflectance colors, which improves visibility of a display device.
- Another embodiment provides an antireflective film including the color polarizing film.
- Yet another embodiment provides a display device including the antireflective film.
- a color polarizing film includes:
- a first layer including a first polymer and a first dichroic dye having an absorption wavelength region of about 380 nanometers to about 780 nanometers, and
- a second layer including a second polymer and a second dichroic dye having an absorption wavelength region of about 380 nanometers to about 780 nanometers,
- the color polarizing film exhibits a maximum absorption wavelength ( ⁇ max ) in a wavelength range of about 380 nanometers to about 780 nanometers.
- An absorption peak at the maximum absorption wavelength ( ⁇ max ) may have a full width at half maximum of less than or equal to about 300 nanometers.
- the color polarizing film may realize a color in an off-state of a display device when the color polarizing film is applied to the display device.
- the first polymer and the second polymer may be independently selected from a polyolefin, a polyamide, a polyester, a polyacrylate, a polymethacrylate, a styrene-containing polymer, a polycarbonate, a vinyl chloride-based polymer, a polyimide, a polysulfone, a polyethersulfone, a polyether-ether ketone, a polyphenylene sulfide, a polyvinyl alcohol, a polyvinylidene chloride, a polyvinyl butyral, a polyarylate, a polyoxymethylene, an epoxy polymer, a copolymer thereof, and a combination thereof.
- the first polymer and the second polymer may be independently selected from polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, glycol modified polyethylene terephthalate, polyethylene naphthalate, nylon, a copolymer thereof, and a combination thereof.
- At least one of the first dichroic dye or the second dichroic dye may include one or more dichroic dyes having the same or different absorption wavelength regions.
- the first dichroic dye may include at least one of a first dichroic dye (1A) having a maximum absorption wavelength in a wavelength range of about 380 nanometers to about 500 nanometers, a first dichroic dye (1B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nanometers and less than or equal to about 580 nanometers, and a first dichroic dye (1C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nanometers and less than or equal to about 780 nanometers.
- a first dichroic dye (1A) having a maximum absorption wavelength in a wavelength range of about 380 nanometers to about 500 nanometers a first dichroic dye (1B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nanometers and less than or equal to about 580 nanometers
- the second dichroic dye may include at least one of a second dichroic dye (2A) having a maximum absorption wavelength in a wavelength range of about 380 nanometers to about 500 nanometers, a second dichroic dye (2B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nanometers and less than or equal to about 580 nanometers, and a second dichroic dye (2C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nanometers and less than or equal to about 780 nanometers.
- a second dichroic dye (2A) having a maximum absorption wavelength in a wavelength range of about 380 nanometers to about 500 nanometers a second dichroic dye (2B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nanometers and less than or equal to about 580 nanometers
- a second dichroic dye (2C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nanometers and less than or equal to
- the first layer may have light transmittance of about 60% to about 85% and the second layer may have light transmittance of greater than or equal to about 30%.
- the first dichroic dye (1A) may include at least one of a first dichroic dye (1A-1) having a maximum absorption wavelength in a wavelength range of about 380 nanometers to about 400 nanometers and a first dichroic dye (1A-2) having a maximum absorption wavelength in a wavelength range of greater than about 400 nanometers and less than or equal to about 500 nanometers.
- the first dichroic dye (1B) may include at least one of a first dichroic dye (1B-1) having a maximum absorption wavelength in a wavelength range of greater than about 500 nanometers and less than or equal to about 560 nanometers and a first dichroic dye (1B-2) having a maximum absorption wavelength in a wavelength range of greater than about 560 nanometers and less than or equal to about 580 nanometers.
- the first dichroic dye (1C) may include at least one of a first dichroic dye (1C-1) having a maximum absorption wavelength in a wavelength range of greater than about 580 nanometers and less than or equal to about 620 nanometers and a first dichroic dye (1C-2) having a maximum absorption wavelength in a wavelength range of greater than about 620 nanometers and less than or equal to about 780 nanometers.
- the second dichroic dye (2A) may include at least one of a second dichroic dye (2A-1) having a maximum absorption wavelength in a wavelength range of about 380 nanometers to about 400 nanometers and a second dichroic dye (2A-2) having a maximum absorption wavelength in a wavelength range of greater than about 400 nanometers and less than or equal to about 500 nanometers.
- the second dichroic dye (2B) may include at least one of a second dichroic dye (2B-1) having a maximum absorption wavelength in a wavelength range of greater than about 500 nanometers and less than or equal to about 560 nanometers and a second dichroic dye (2B-2) having a maximum absorption wavelength in a wavelength range of greater than about 560 nanometers and less than or equal to about 580 nanometers.
- the second dichroic dye (2C) may include at least one of a second dichroic dye (2C-1) having a maximum absorption wavelength in a wavelength range of greater than about 580 nanometers and less than or equal to about 620 nanometers and a second dichroic dye (2C-2) having a maximum absorption wavelength in a wavelength range of greater than about 620 nanometers and less than or equal to about 780 nanometers.
- the first dichroic dye and the second dichroic dye may independently include a compound represented by Chemical Formula 1.
- Ar 1 to Ar 3 are independently a substituted or unsubstituted C6 to C15 arylene group
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof,
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heteroaryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring,
- n 0, 1, or 2
- m 0 or 1.
- the compound represented by Chemical Formula 1 may be at least one of a first dichroic dye (1A) having a maximum absorption wavelength in a wavelength range of about 380 nanometers to about 500 nanometers, a first dichroic dye (1B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nanometers and less than or equal to about 580 nanometers, and a first dichroic dye (1C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nanometers and less than or equal to about 780 nanometers, in accordance with the values of n, m, R 1 , and R 2 .
- the first dichroic dye (1A) may be the compound wherein in Chemical Formula 1,
- n 0 or 1
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, or a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the first dichroic dye (1B) may be the compound wherein in Chemical Formula 1,
- n 0 or 1
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the first dichroic dye (1C) may be the compound wherein in Chemical Formula 1,
- n 1 or 2
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof,
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the compound represented by Chemical Formula 1 may be at least one of a second dichroic dye (2A) having a maximum absorption wavelength in a wavelength range of about 380 nanometers to about 500 nanometers, second dichroic dye (2B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nanometers and less than or equal to about 580 nanometers, and a second dichroic dye (2C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nanometers and less than or equal to about 780 nanometers, in accordance with the values of n, m, R 1 , and R 2 .
- the second dichroic dye (2A) may be the compound wherein in Chemical Formula 1,
- n 0 or 1
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, or a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the second dichroic dye (2B) may be the compound wherein in Chemical Formula 1,
- n 0 or 1
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, or a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the second dichroic dye (2C) may be the compound wherein in Chemical Formula 1,
- n 1 or 2
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, or a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the first layer may have light transmittance of about 60% to about 85% and the second layer may have light transmittance of greater than or equal to about 30%.
- a ratio (T 1 /T 2 ) of the light transmittance (T 1 ) of the first layer relative to the light transmittance (T 2 ) of the second layer may range from about 1.2 to about 2.9.
- the first dichroic dye includes the first dichroic dye (1B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nanometers and less than or equal to about 580 nanometers, and the first dichroic dye (1C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nanometers and less than or equal to about 780 nanometers, and a combination thereof
- the first layer may have light transmittance of about 30% to about 50% and the second layer may have light transmittance of greater than or equal to about 60%.
- a ratio (T 1 /T 2 ) of the light transmittance (T 1 ) of the first layer relative to the light transmittance (T 2 ) of the second layer may range from about 0.3 to about 0.9.
- the color polarizing film may have polarization efficiency of about 85% to about 95% and light transmittance of about 35% to about 45%.
- the first dichroic dye may be included in an amount of about 0.01 to about 10 parts by weight based on 100 parts by weight of the first polymer and the second dichroic dye may be included in an amount of about 0.01 to about 10 parts by weight based on 100 parts by weight of the second polymer.
- the first layer of the color polarizing film may be made of a melt blend of the first polymer and the first dichroic dye and the second layer may be made of a melt blend of the second polymer and the second dichroic dye.
- an antireflective film includes:
- the compensation film may be a ⁇ /4 plate.
- a display device includes:
- the antireflective film disposed on at least one surface of the display panel.
- the display device may include an organic light emitting diode display or a liquid crystal display.
- FIG. 1 is a schematic view showing a color polarizing film according to an embodiment
- FIG. 2 is a schematic top plan view of polarization axes of the color polarizing film of FIG. 1 ,
- FIG. 3 is a schematic view showing an antireflective film according to an embodiment
- FIG. 4 is a schematic view showing the anti-reflection principle of a color polarizing film
- FIG. 5 is a cross-sectional view schematically showing an organic light emitting diode (OLED) display according to an embodiment
- FIG. 6 is a graph of absorbance (arbitrary units, a.u.) versus wavelength (nanometers, nm), showing absorbance depending on a wavelength of the color polarizing films of Examples 1 to 3, and
- FIG. 7 is a graph of absorbance (arbitrary units, a.u.) versus wavelength (nanometers, nm), showing absorbance depending on a wavelength of the polarizing film of Comparative Example 1.
- first, second, third etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer, or section. Thus, a first element, component, region, layer, or section discussed below could be termed a second element, component, region, layer, or section without departing from the teachings of the present embodiments.
- Exemplary embodiments are described herein with reference to cross section illustrations that are schematic illustrations of idealized embodiments. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, embodiments described herein should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, a region illustrated or described as flat may, typically, have rough and/or nonlinear features. Moreover, sharp angles that are illustrated may be rounded. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region and are not intended to limit the scope of the present claims.
- Matture as used herein is inclusive of all types of combinations, including blends, alloys, solutions, and the like.
- alkyl group refers to a straight or branched chain saturated aliphatic hydrocarbon group having the specified number of carbon atoms and having one valence.
- Non-limiting examples of the alkyl group are methyl, ethyl, and propyl.
- alkoxy group refers to “alkyl-O—”, wherein the term “alkyl” has the same meaning as described above.
- Non-limiting examples of the alkoxy group are methoxy, ethoxy, propoxy, cyclopropoxy, and cyclohexyloxy.
- alkylthio group refers to “alkyl-S—”, wherein the term “alkyl” has the same meaning as described above.
- Non-limiting examples of the alkylthio group are methylthio, ethylthio, propylthio, cyclopropylthio, and cyclohexylthio.
- alkenyl group refers to a straight or branched chain, monovalent hydrocarbon group having at least one carbon-carbon double bond.
- alkynyl group refers to a straight or branched chain, monovalent hydrocarbon group having at least one carbon-carbon triple bond.
- substituted refers to replacement of at least one hydrogen of a compound or a group by a halogen (—F, —Br, —Cl, or —I), a C1 to C20 alkoxy group, a cyano group, an amino group, a C1 to C20 ester group, a C1 to C20 alkyl group, a C2 to C20 alkenyl group, a C2 to C20 alkynyl group, a C6 to C20 aryl group, a C2 to C20 heteroaryl group, and a combination thereof.
- a halogen —F, —Br, —Cl, or —I
- the number of carbon atoms in the resulting “substituted” group is defined as the sum of the carbon atoms contained in the original (unsubstituted) group and the carbon atoms (if any) contained in the substituent.
- substituted C1 to C30 alkyl refers to a C1 to C30 alkyl group substituted with C6 to C30 aryl group
- the total number of carbon atoms in the resulting aryl substituted alkyl group is C7 to C60.
- hetero refers to a functional group including 1 to 3 heteroatoms selected from N, O, S, P, and Si.
- FIG. 1 a color polarizing film according to an embodiment is described.
- FIG. 1 is a schematic view showing a color polarizing film according to an embodiment.
- a color polarizing film 100 includes a first layer 110 including a first polymer and a first dichroic dye having an absorption wavelength region of about 380 nanometers (nm) to about 780 nm; and a second layer 120 including a second polymer and a second dichroic dye having an absorption wavelength region of about 380 nm to about 780 nm, wherein the second layer 120 is disposed on the first layer 110 , wherein a polarization axis of the first layer 110 and a polarization axis of a second layer 120 cross each other, and wherein the color polarizing film exhibits a maximum absorption wavelength ( ⁇ max ) in a wavelength range of about 380 nm to about 780 nm.
- ⁇ max maximum absorption wavelength
- the maximum absorption wavelength ( ⁇ max ) is determined when the peak is found as evidence of a full width at half maximum (FWHM) and the peak may be identified at a predetermined wavelength in the absorption graph according to the wavelength of the color polarizing film 100 .
- the full width at half maximum (FWHM) of the absorption peak at the maximum absorption wavelength ( ⁇ max ) may be less than or equal to about 300 nm, for example about 100 nm to about 250 nm or about 100 nm to about 200 nm. While not wishing to be bound by theory, it is understood that within the ranges, the color polarizing film 100 may realize a desirable color.
- the color polarizing film 100 exhibits a maximum absorption wavelength ( ⁇ max ) in a wavelength range of about 380 nm to about 780 nm, and thus, realizes a color even in an off-state of a display device when the color polarizing film is applied to the display device.
- ⁇ max maximum absorption wavelength
- the first polymer and the second polymer may independently be a hydrophobic polymer, for example, a polyolefin such as polyethylene (PE), polypropylene (PP), and a copolymer thereof; a polyamide such as nylon and an aromatic polyamide; a polyester such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), glycol modified polyethylene terephthalate (PETG), and polyethylene naphthalate (PEN); a poly(meth)acrylate polymer such as polymethyl(meth)acrylate; a styrene-containing polymer such as polystyrene (PS) and a (meth)acrylonitrile-styrene copolymer; a polycarbonate; a vinyl chloride-based polymer; a polyimide; a polysulfone; a polyethersulfone; a polyether-ether ketone; a polyphenylene sulfide; a polyvinyl
- the first polymer and the second polymer may be, for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), glycol modified polyethylene terephthalate (PETG), polyethylene naphthalate (PEN), nylon, a copolymer thereof, or a combination thereof.
- PE polyethylene
- PP polypropylene
- PET polyethylene terephthalate
- PBT polybutylene terephthalate
- PET polyethylene terephthalate
- PBT polybutylene terephthalate
- PET polybutylene terephthalate
- PETG glycol modified polyethylene terephthalate
- PEN polyethylene naphthalate
- nylon a copolymer thereof, or a combination thereof.
- the first polymer and the second polymer may be, for example, a mixture of two or more selected from polyethylene (PE), polypropylene (PP), and a copolymer of polyethylene and polypropylene (PE-PP), and for another example, a mixture of polypropylene (PP) and a polyethylene-polypropylene (PE-PP) copolymer.
- PE polyethylene
- PP polypropylene
- PE-PP polyethylene-polypropylene
- the polypropylene (PP) may have, for example, a melt flow index (MFI measured according to ASTM D1238) of about 0.1 g/10 min (0.1 grams per 10 minutes) to about 5 g/10 min.
- MFI melt flow index
- the melt flow index (MFI) shows the amount of a polymer in a molten state flowing per 10 min, and relates to viscosity of the polymer in a molten state.
- MFI melt flow index
- the melt flow index (MFI) becomes lower, the polymer has higher viscosity, while as the melt flow index (MFI) becomes higher, the polymer has lower viscosity.
- the polypropylene may have a melt flow index (MFI) within the range, workability may be effectively improved and properties of a final product may also be effectively improved.
- MFI melt flow index
- the polypropylene may have a melt flow index (MFI) ranging from about 0.5 g/10 min to about 5 g/10 min.
- the polyethylene-polypropylene copolymer (PE-PP) may include about 1 percent by weight (wt %) to about 50 wt % of an ethylene group based on the total amount of the copolymer. While not wishing to be bound by theory, it is understood that when the polyethylene-polypropylene (PE-PP) copolymer includes the ethylene group within the range, phase-separation of the polypropylene and the polyethylene-polypropylene (PE-PP) copolymer may be prevented or reduced. In addition, while excellent light transmittance and alignment properties are maintained, the elongation is enhanced when the film is elongated, so the polarization characteristics of the film may be improved. For example, the polyethylene-polypropylene (PE-PP) copolymer may include about 1 wt % to about 25 wt % of the ethylene group based on the total amount of the copolymer.
- the polyethylene-polypropylene (PE-PP) copolymer may have, for example, a melt flow index (MFI) of about 5 g/10 min to about 15 g/10 min. While not wishing to be bound by theory, it is understood that when the polyethylene-polypropylene (PE-PP) copolymer has a melt flow index (MFI) within the range, workability may be effectively improved and properties of a final product may also be effectively improved.
- the polyethylene-polypropylene (PE-PP) copolymer may have a melt flow index (MFI) of about 10 g/10 min to about 15 g/10 min.
- the first polymer and the second polymer may independently include the polypropylene (PP) and the polyethylene-polypropylene (PE-PP) copolymer in a weight ratio of about 1:9 to about 9:1. While not wishing to be bound by theory, it is understood that when the polypropylene (PP) and the polyethylene-polypropylene (PE-PP) copolymer are included within the range, crystallization of polypropylene may be prevented, and thus, haze characteristics may be improved while excellent mechanical strength is maintained.
- first polymer and the second polymer may independently include the polypropylene (PP) and the polyethylene-polypropylene (PE-PP) copolymer in a weight ratio of about 4:6 to about 6:4, or about 5:5.
- the first polymer and the second polymer may independently have a melt flow index (MFI) of about 1 g/10 min to about 15 g/10 min. While not wishing to be bound by theory, it is understood that when the first polymer and the second polymer have a melt flow index (MFI) within the range, excessive crystals are not formed in the polymer 11 resin, and thus, excellent light transmittance may be ensured and simultaneously workability may be effectively improved due to an appropriate viscosity for manufacturing a film.
- the first polymer and the second polymer may have a melt flow index (MFI) of about 5 g/10 min to about 15 g/10 min.
- the first polymer and the second polymer may have crystallinity of about 50% or less. While not wishing to be bound by theory, it is understood that when the first polymer and the second polymer have crystallinity within the range, haze may be lowered, and thus, excellent optical properties may be realized. For example, the first polymer and the second polymer may have crystallinity of about 30% to about 50%.
- the first polymer and the second polymer may have light transmittance of greater than or equal to about 85% in a wavelength region of about 380 nm to about 780 nm.
- the first polymer and the second polymer may be elongated in a uniaxial direction.
- the uniaxial direction of the first polymer and the second polymer may be the same as a length direction of the dichroic dye 12.
- the first dichroic dye is dispersed in the first polymer, and is arranged in one direction along an elongation direction of the first polymer and the second dichroic dye is dispersed in the second polymer.
- the first dichroic dye and the second dichroic dye may transmit one perpendicular polarizing component out of two perpendicular polarizing components in a predetermined wavelength region.
- At least one of the first dichroic dye or the second dichroic dye may independently include one or more dichroic dyes having the same or different absorption wavelength regions.
- the first dichroic dye may include at least one, for example one or more of a first dichroic dye (1A) having a maximum absorption wavelength in a wavelength range of about 380 nm to about 500 nm, a second dichroic dye (1B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nm and less than or equal to about 580 nm, and a third dichroic dye (1C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nm and less than or equal to about 780 nm.
- a first dichroic dye (1A) having a maximum absorption wavelength in a wavelength range of about 380 nm to about 500 nm
- a second dichroic dye (1B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nm and less than or equal to about 580 nm
- a third dichroic dye (1C) having a maximum absorption wavelength in a wavelength range of greater than about 580
- the second dichroic dye may include may include at least one, for example one or more of a second dichroic dye (2A) having a maximum absorption wavelength in a wavelength range of about 380 nm to about 500 nm, a second dichroic dye (2B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nm and less than or equal to about 580 nm and a second dichroic dye (2C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nm and less than or equal to about 780 nm.
- a second dichroic dye (2A) having a maximum absorption wavelength in a wavelength range of about 380 nm to about 500 nm a second dichroic dye (2B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nm and less than or equal to about 580 nm
- a second dichroic dye (2C) having a maximum absorption wavelength in a wavelength range of greater than about 580 n
- the first layer 110 of the color polarizing film 100 may not include all three varieties of the first dichroic dye (1A), the first dichroic dye (1B), and the first dichroic dye (1C) in order to realize a desirable color.
- a neutral gray film may be obtained.
- the first layer 110 may not include all three varieties of the first dichroic dye (1A), the first dichroic dye (1B), and the first dichroic dye (1C).
- the first dichroic dye (1A), the first dichroic dye (1B), and the first dichroic dye (1C) may be a yellow dye, a magenta dye, and a cyan dye, respectively, but are not limited thereto.
- the second layer 120 of the color polarizing film 100 may not include all three varieties of the second dichroic dye (2A), the second dichroic dye (2B), and the second dichroic dye (2C) in order to realize a desirable color.
- the second layer 120 may not include all three varieties of the second dichroic dye (2A), the second dichroic dye (2B), and the second dichroic dye (2C).
- the second dichroic dye (2A), the second dichroic dye (2B), and the second dichroic dye (2C) may be a yellow dye, a magenta dye, and a cyan dye, respectively, but are not limited thereto.
- the first layer 110 may include the first dichroic dye selected from the first dichroic dye (1A), the first dichroic dye (1B) and a combination thereof
- the second layer may include the second dichroic dye selected from the second dichroic dye (2A), the second dichroic dye (2B), and a combination thereof.
- the first layer 110 may include the first dichroic dye selected from the first dichroic dye (1B), the first dichroic dye (1C), and a combination thereof
- the second layer 120 may include the second dichroic dye selected from the second dichroic dye (2B), the second dichroic dye (2C), and a combination thereof.
- the first layer 110 may include the first dichroic dye (1B), and the second layer 120 may include the second dichroic dye (2A).
- the first layer 110 may include the first dichroic dye (1A), and the second layer 120 may include the second dichroic dye (2B).
- the first dichroic dye (1A) may include at least one of a first dichroic dye (1A-1) having a maximum absorption wavelength in a wavelength range of about 380 nm to about 400 nm and a first dichroic dye (1A-2) having a maximum absorption wavelength in a wavelength range of greater than about 400 nm and less than or equal to about 500 nm.
- the first dichroic dye (1B) may include at least one of a first dichroic dye (1B-1) having a maximum absorption wavelength in a wavelength range of greater than about 500 nm and less than or equal to about 560 nm and a first dichroic dye (1B-2) having a maximum absorption wavelength in a wavelength range of greater than about 560 nm and less than or equal to about 580 nm.
- the first dichroic dye (1C) may include at least one of a first dichroic dye (1C-1) having a maximum absorption wavelength in a wavelength range of greater than about 580 nm and less than or equal to about 620 nm and a first dichroic dye (1C-2) having a maximum absorption wavelength in a wavelength range of greater than about 620 nm and less than or equal to about 780 nm.
- the second dichroic dye (2A) may include at least one of a second dichroic dye (2A-1) having a maximum absorption wavelength in a wavelength range of about 380 nm to about 400 nm and a second dichroic dye (2A-2) having a maximum absorption wavelength in a wavelength range of greater than about 400 nm and less than or equal to about 500 nm.
- the second dichroic dye (2B) may include at least one of a second dichroic dye (2B-1) having a maximum absorption wavelength in a wavelength range of greater than about 500 nm and less than or equal to about 560 nm and a second dichroic dye (2B-2) having a maximum absorption wavelength in a wavelength range of greater than about 560 nm and less than or equal to about 580 nm.
- the second dichroic dye (2C) may include at least one of a second dichroic dye (2C-1) having a maximum absorption wavelength in a wavelength range of greater than about 580 nm and less than or equal to about 620 nm and a second dichroic dye (2C-2) having a maximum absorption wavelength in a wavelength range of greater than about 620 nm and less than or equal to about 780 nm.
- the first dichroic dye and the second dichroic dye may be, for example, an azo group-containing compound, for example an azo group-containing compound represented by Chemical Formula 1.
- Ar 1 to Ar 3 are independently a substituted or unsubstituted C6 to C15 arylene group
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof,
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heteroaryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring,
- n 0, 1, or 2
- m 0 or 1.
- Ar 1 to Ar 3 may include, for example, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthalene group, or a substituted or unsubstituted biphenylene group.
- the substituted phenylene group, the substituted naphthalene group, and the substituted biphenylene group may be, for example, a phenylene group, a naphthalene group, and a biphenylene group substituted with a C1 to C20 alkyl group, a C1 to C20 alkoxy group, a halogen, a halogen-containing group, or a combination thereof.
- At least one of Ar 1 to Ar 3 may be a substituted phenylene group, a substituted naphthalene group, or a substituted biphenylene group, and for example at least one of Ar 1 to Ar 3 may be a phenylene group, a naphthalene group, or a biphenylene group substituted with a C1 to C20 alkyl group, a C1 to C20 alkoxy group, a halogen, a halogen-containing group, or a combination thereof.
- At least two of Ar 1 to Ar 3 may be a substituted phenylene group, a substituted naphthalene group, or a substituted biphenylene group, and for example at least two of Ar 1 to Ar 3 may be a phenylene group, a naphthalene group, or a biphenylene group substituted with a C1 to C20 alkyl group, a C1 to C20 alkoxy group, a halogen, a halogen-containing group, or a combination thereof.
- the compound represented by Chemical Formula 1 may be, for example at least one of a first dichroic dye (1A) having a maximum absorption wavelength in a wavelength range of about 380 nm to about 500 nm, a second dichroic dye (1B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nm and less than or equal to about 580 nm, and a third dichroic dye (1C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nm and less than or equal to about 780 nm, in accordance with the values of n, m, R 1 , and R 2 .
- the first dichroic dye (1A) may be the compound wherein in Chemical Formula 1,
- n 0 or 1
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the first dichroic dye (1B) may be the compound wherein in Chemical Formula 1,
- n 0 or 1
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the first dichroic dye (1C) may be the compound wherein in Chemical Formula 1,
- n 1 or 2
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the compound represented by Chemical Formula 1 may be, for example at least one of a second dichroic dye (2A) having a maximum absorption wavelength in a wavelength range of about 380 nm to about 500 nm, a second dichroic dye (2B) having a maximum absorption wavelength in a wavelength range of greater than about 500 nm and less than or equal to about 580 nm, and a second dichroic dye (2C) having a maximum absorption wavelength in a wavelength range of greater than about 580 nm and less than or equal to about 780 nm, in accordance with the values of n, m, R 1 , and R 2 .
- the second dichroic dye (2A) may be the compound wherein in Chemical Formula 1,
- n 0 or 1
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the second dichroic dye (2B) may be the compound wherein in Chemical Formula 1,
- n 0 or 1
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the second dichroic dye (2C) may be the compound wherein in Chemical Formula 1,
- n 1 or 2
- R 1 is selected from a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylthio group, —(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), —O(C ⁇ O)R (wherein R is a substituted or unsubstituted C1 to C30 alkyl group), a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted C2 to C30 alkynyl group, and a combination thereof, and
- R 2 is selected from hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, —NR 3 R 4 , and a combination thereof, wherein R 3 and R 4 are independently hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, which are optionally linked to each other to provide a ring.
- the first layer 110 may have light transmittance of about 60% to about 85%, for example about 65% to about 85% and the second layer 120 may have light transmittance of greater than or equal to about 30%, for example about 35% to about 50%.
- a ratio (T 1 /T 2 ) of the light transmittance (T 1 ) of the first layer 110 relative to the light transmittance (T 2 ) of the second layer 120 may range from about 1.2 to about 2.9, for example about 1.3 to about 2.9, or about 1.3 to about 2.5. While not wishing to be bound by theory, it is understood that within the ranges, reflectance of the color polarizing film 100 may be lowered and light transmittance may be improved and a desirable color may be realized.
- the first layer 110 may have light transmittance of about 30% to about 50%, for example about 40% to about 50% and the second layer 120 may have light transmittance of about greater than or equal to about 60%, for example about 65% to about 75%.
- a ratio (T 1 /T 2 ) of the light transmittance (T 1 ) of the first layer 110 relative to the light transmittance (T 2 ) of the second layer 120 may range from about 0.3 to about 0.9, for example about 0.35 to about 0.85 or about 0.4 to about 0.8. While not wishing to be bound by theory, it is understood that within the ranges, reflectance of the color polarizing film 100 may be lowered and light transmittance may be improved and a desirable color may be realized.
- the color polarizing film 100 may have polarization efficiency of about 85% to about 95%, for example about 89% to about 93% and light transmittance of about 35% to about 45%, for example about 36% to about 44%. As the polarization efficiency and the light transmittance are within the ranges, the light emission in the display device may not be interrupted when the color polarizing film 100 is applied on one surface of the display device.
- the first dichroic dye may be included in an amount of about 0.01 to about 10 parts by weight, for example about 0.05 to about 5 parts by weight based on 100 parts by weight of the first polymer and the second dichroic dye may be included in an amount of about 0.01 to about 10 parts by weight, for example about 0.05 to about 5 parts by weight based on 100 parts by weight of the second polymer. While not wishing to be bound by theory, it is understood that within the ranges, sufficient polarization characteristics and color characteristics may be accomplished while not deteriorating the light transmittance of the light polarizing film 100 .
- the color polarizing film 100 may have a dichroic ratio of about 2 to about 14 at a wavelength of about 450 nm to about 550 nm,
- the color polarizing film 100 may have a dichroic ratio of about 2 to about 14 at a wavelength of about 380 nm to about 650 nm.
- the dichroic ratio is a value obtained by dividing linear polarization absorption in a direction perpendicular to the axis of the polymer by polarization absorption in a direction parallel to the polymer, and may be obtained by Equation 1.
- DR Log(1/ T ⁇ )/Log(1/ T // ) Equation 1
- DR is a dichroic ratio of a polarizing film
- T ⁇ is light transmittance of light entering parallel to the transmissive axis of a polarizing film
- T ⁇ is light transmittance of light entering perpendicular to the transmissive axis of a polarizing film.
- the dichroic ratio denotes a degree to which the first dichroic dye and the second dichroic dye are aligned in one direction in the color polarizing film 100 .
- the color polarizing film 100 has a dichroic ratio within the ranges in a predetermined wavelength range, which leads the first dichroic dye and the second dichroic dye to be aligned along the alignment of a polymer chain. As a result, the polarizing characteristics of the film may be improved, while the reflection may be decreased to about 10% or less.
- the color polarizing film 100 may have a low thickness of less than or equal to about 40 micrometers ( ⁇ m), for example, a thickness of about 30 ⁇ m to about 40 ⁇ m.
- the first layer 110 of the color polarizing film 100 may have a thickness of less than or equal to about 30 ⁇ m, for example, a thickness ranging from about 15 ⁇ m to about 20 ⁇ m.
- the second layer 120 of the color polarizing film 100 may have a thickness of less than or equal to about 30 ⁇ m, for example, a thickness ranging from about 15 ⁇ m to about 20 ⁇ m.
- the color polarizing film 100 may be thinner than a polarizer requiring a protective layer such as triacetyl cellulose (TAC), and as a result, a thin display device may be realized.
- TAC triacetyl cellulose
- the first layer 110 of the color polarizing film 100 may be formed of a melt blend of a first polymer and a first dichroic dye, wherein the melt blend may be obtained by mixing the first polymer and the first dichroic dye at a temperature higher than or equal to the melting point of the first polymer.
- the second layer 120 of the color polarizing film 100 may be formed of a melt blend of a second polymer and a second dichroic dye, wherein the melt blend may be obtained by mixing the second polymer and the second dichroic dye at a temperature higher than or equal to the melting point of the first polymer.
- the melt-blending may be for example performed at a temperature of less than or equal to about 300° C., for example, at a temperature ranging from about 50 to about 300° C.
- the color polarizing film 100 is manufactured by melt-blending the first polymer and the first dichroic dye to form a sheet, elongating the sheet in a uniaxial direction to form the first layer 110 , melt-blending the second polymer and the second dichroic dye to form another sheet, elongating the sheet in a uniaxial direction to obtain the second layer 120 , and then, bonding the first and second layers with their polarization axes cross each other.
- the first and second layers 110 and 120 may be bonded by an adhesion layer.
- the adhesion layer may be used to effectively bond the first and second layers 110 and 120 , and for example, may be made of a pressure sensitive adhesive.
- the elongation in a uniaxial direction may be performed at a temperature ranging from about 30° C. to about 200° C. at an elongation ratio of about 300% to about 1,500%.
- the elongation ratio is a ratio of a length after elongation relative to a length before the elongation, which indicates a degree that the sheets are elongated in a uniaxial direction.
- FIG. 2 is a schematic top plan view showing the polarization axes of the color polarizing film 100 of FIG. 1 .
- the polarization axis 115 of the first layer 110 has an angle of about 85° to about 95°, for example, about 87.5° to about 92.5°, for example about 90° with the polarization axis 125 of the second layer.
- FIG. 3 is a schematic view showing an antireflective film according to an embodiment.
- an antireflective film 300 includes a compensation film 200 and a color polarizing film 100 on one surface of the compensation film 200 .
- the compensation film 200 may be a retardation film, for example a ⁇ /4 plate.
- the compensation film 200 may circularly-polarize light passed through the color polarizing film 100 to generate retardation, and may influence reflection and/or absorption of light.
- the antireflective film 300 may be mounted on one or both surfaces of a display device, and particularly, may prevent light flowing into the display part of the display device from the outside from being reflected (hereinafter referred to as “external light reflection”). Accordingly, the antireflective film 300 may prevent visibility deterioration caused by the external light reflection.
- FIG. 4 is a schematic view showing the anti-reflection principle of a color polarizing film.
- the incident non-polarized light having entered from the outside is passed through the color polarizing film 100 , and the polarized light is shifted into circularly polarized light by passing through the compensation film 200 , for example a ⁇ /4 plate. While the circularly polarized light is reflected in a display panel 50 including a substrate, an electrode, and optionally, other layers, and when the circular polarization direction is changed and the circularly polarized light is passed through the compensation film 200 again, only a second polarized perpendicular component, which is the other polarized perpendicular component of the two polarized perpendicular components, may be transmitted. As the second polarized perpendicular component is not passed through the color polarizing film 100 , and light does not exit to the outside, effects of preventing the external light reflection may be provided.
- the antireflective film 300 may be applied to various display devices.
- the display device may be, for example, an organic light emitting diode (OLED) display or a liquid crystal display (LCD), but is not limited thereto.
- OLED organic light emitting diode
- LCD liquid crystal display
- a display device includes a display panel and the antireflective film on at least one surface of the display panel.
- the display panel may include, for example, two substrates facing each other with an active layer disposed therebetween, and for example, may include a liquid crystal panel or an organic light emitting panel.
- the antireflective film includes the compensation film and the color polarizing film
- the compensation film may be a phase difference film such as a ⁇ /4 plate as described above
- the color polarizing film includes the first layer 110 including a first polymer and a first dichroic dye having an absorption wavelength region of about 380 nm to about 780 nm; and the second layer 120 including a second polymer and a second dichroic dye having an absorption wavelength region of about 380 nm to about 780 nm, wherein the second layer 120 is disposed on the first layer 110 , wherein the polarization axis of the first layer 110 and the polarization axis of the second layer 120 cross each other, and wherein the color polarizing film exhibits a maximum absorption wavelength ( ⁇ max ) in a range of about 380 nm to about 780 nm.
- ⁇ max maximum absorption wavelength
- OLED organic light emitting diode
- FIG. 5 is a cross-sectional view schematically showing an organic light emitting diode (OLED) display according to an embodiment.
- OLED organic light emitting diode
- an organic light emitting diode (OLED) display 1 includes a base substrate 101 , a lower electrode 103 disposed on the base substrate 101 , an organic emission layer 105 disposed on the lower electrode 103 , an upper electrode 107 disposed on the organic emission layer 105 , an encapsulation substrate 109 disposed on the upper electrode 107 , and an antireflective film 300 disposed on the encapsulation substrate 109 .
- the antireflective film 300 includes the compensation film 200 and the color polarizing film 100 as described above.
- the base substrate 101 may be made of a silicon wafer, glass, plastic, and the like.
- Either of the lower electrode 103 or the upper electrode 107 may be an anode, while the other one of them is a cathode.
- the anode is an electrode where holes are injected, and is formed of a transparent conductive material having a high work function and externally transmitting entered light, for example, ITO or IZO.
- the cathode is an electrode where electrons are injected. It is formed of a conducting material having a low work function and having no influence on an organic material, and is selected from, for example, aluminum (Al), calcium (Ca), and barium (Ba).
- the organic emission layer 105 includes an organic material emitting light when a voltage is applied between the lower electrode 103 and the upper electrode 107 .
- auxiliary layer may be further included between the lower electrode 103 and the organic emission layer 105 and between the upper electrode 107 and the organic emission layer 105 .
- the auxiliary layer may include a hole transport layer, a hole injection layer, an electron injection layer, and an electron transport layer for balancing electrons and holes.
- the encapsulation substrate 109 may be made of glass, metal, or a polymer.
- the lower electrode 103 , the organic emission layer 105 , and the upper electrode 107 are sealed to prevent permeating moisture and/or oxygen.
- the antireflective film 300 may be disposed at a light-emitting side.
- the antireflective film 300 may be disposed outside of the base substrate 101 in a bottom emission type in which light emits from the base substrate 101 , outside of the encapsulation substrate 109 in a top emission type in which light emits from the encapsulation substrate 109 , and outside both of the base substrate 101 and the encapsulation substrate 109 in a both-side emission type in which light emits from the base substrate 101 and the encapsulation substrate 109 .
- the antireflective film 300 includes the compensation film 200 and the color polarizing film 100 as described above.
- the color polarizing film 100 can be replaced by the color polarizing film 10 as described above.
- Chemical Formula 1-1 represented by Chemical Formula 1-1
- Chemical Formula 1-2 represented by Chemical Formula 1-2
- the first composition is melt-blended at about 230° C. by using a Micro-compounder manufactured by DSM.
- the melt blend is positioned in a sheet-shaped mold and pressed with a press under a high pressure at a high temperature to provide a sheet. Subsequently, the sheet is elongated in a uniaxial direction (using a tension tester manufactured by Instron) at a ratio of 1,100% at 115° C. to provide a first layer.
- the second composition is melt-blended at about 230° C. by using a Micro-compounder manufactured by DSM.
- the melt blend is placed in a sheet-shaped mold and pressed at a high temperature under a high pressure to provide a sheet. Subsequently, the sheet is elongated at a ratio of 1,100% in a uniaxial direction (using a tension tester manufactured by Instron) at 115° C. to form a second layer.
- the light transmittance (T 1 ) of the first layer is 44.3%, and the ⁇ max of the first layer is 565 nm, while the light transmittance (T 2 ) of the second layer is 67.5%, and the ⁇ max of the second layer is 385 nm.
- the polarization axis of the first layer and the polarization axis of the second layer are disposed to cross each other at 90°, and the first and second layers are adhered by using a pressure sensitive adhesive (PL8540, Saiden Chemical Industry Co., Ltd.) to manufacture a color polarizing film.
- a pressure sensitive adhesive PL8540, Saiden Chemical Industry Co., Ltd.
- a color polarizing film is manufactured according to the same method as Example 1 except for forming the first layer to have light transmittance (T1) of 46.3% and the ⁇ max of 565 nm when measured by using a UV-VIS spectrophotometer (V-7100, JASCO Inc.).
- a color polarizing film is manufactured according to the same method as Example 1 except for forming the first layer to have light transmittance (T1) of 44.1% and the ⁇ max of 565 nm when measured by using a UV-VIS spectrophotometer (V-7100, JASCO Inc.).
- a composition for a polarizing film is prepared by mixing 100 parts by weight of a polymer including polypropylene (PP, HF351 Samsung Total Petrochemicals Co., Ltd.)) and a polypropylene-polyethylene copolymer (PP-PE, RP5050, Polymirae Co., Ltd.) in a ratio of 50:50 (w/w) with 1 part by weight of a mixture of dichroic dyes represented by Chemical Formulae 1A to 1D.
- PP polypropylene
- PP-PE polypropylene-polyethylene copolymer
- RP5050 Polymirae Co., Ltd.
- the composition for a polarizing film is melt-blended at about 230° C. by using a Micro-compounder manufactured by DSM.
- the melt blend is positioned in a sheet-shaped mold and pressed by a press under a high pressure at a high temperature to provide a sheet. Subsequently, the sheet is elongated in a uniaxial direction at a ratio of 1,100% (using a tension tester manufactured by Instron) at 115° C. to provide a polarizing film.
- FIG. 6 shows absorbance depending on a wavelength for the polarizing films of Examples 1 to 3
- FIG. 7 shows absorbance depending on a wavelength for the polarizing film of Comparative Example 1.
- PE is polarization efficiency of the polarizing film
- T // is light transmittance of the color polarizing film of the polarizing film with respect to light entering parallel to the transmissive axis
- T ⁇ is light transmittance of the polarizing film with respect to light entering perpendicular to the transmissive axis.
- T // and T ⁇ are measured by using a UV-VIS spectrophotometer (JASCO, V-7100).
- Example 1 Polarization Full width at half efficiency ⁇ max maximum (FWHM) T 1 /T 2 (PE, %)
- Example 1 405 nm 120 nm 0.653 94.9
- Example 2 405 nm 120 nm 0.656 93.6
- Example 3 405 nm 150 nm 0.686 90.8
- the polarizing films according to Examples 1 to 3 show a maximum absorption wavelength at 405 nm and high polarization efficiency ranging from 90.8% to 94.9%.
- the polarizing film according to Comparative Example 1 appears black and shows an almost flat absorption peak in a visible light region (380 nm to 780 nm), and accordingly, the maximum absorption peak and the full width at half maximum (FWHM) of the polarizing film may not be determined.
- Each color polarizing film obtained from Examples 1 to 3 and a circularly polarized light compensation film ( ⁇ /4 plate) are laminated to provide antireflective films according to Examples 4 to 6.
- a circularly polarized light compensation film a WRS film manufactured by Teijin is used.
- An antireflective film is prepared in accordance with the same procedure as in Examples 4 to 6, except that the polarizing film obtained from Comparative Example 1 is used instead of the polarizing films according to Examples 1 to 3.
- a metallic anode, an organic emission layer including a light emitting material, a cathode including a transparent or a semi-transparent conductivity material, and a second substrate are sequentially stacked on a first glass substrate to provide an organic light emitting display panel. Subsequently, the circularly polarized light compensation film of the antireflective film obtained from each of Example 4 to 6 is attached to face the second substrate of the light emitting display panel to provide an organic light emitting diode (OLED) display.
- OLED organic light emitting diode
- OLED organic light emitting diode
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Nonlinear Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Optics & Photonics (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polarising Elements (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
Description
DR=Log(1/T ⊥)/Log(1/T //)
PE (%)=[(T // −T ⊥)/(T // +T ⊥)]1/2×100
TABLE 1 | |||||
Polarization | |||||
Full width at half | efficiency | ||||
λmax | maximum (FWHM) | T1/T2 | (PE, %) | ||
Example 1 | 405 |
120 nm | 0.653 | 94.9 |
Example 2 | 405 |
120 nm | 0.656 | 93.6 |
Example 3 | 405 nm | 150 nm | 0.686 | 90.8 |
Claims (30)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2016-0020862 | 2016-02-22 | ||
KR1020160020862A KR102643463B1 (en) | 2016-02-22 | 2016-02-22 | Color polarizing film and antireflective film and display device |
Publications (2)
Publication Number | Publication Date |
---|---|
US20170242296A1 US20170242296A1 (en) | 2017-08-24 |
US10324333B2 true US10324333B2 (en) | 2019-06-18 |
Family
ID=59629842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/435,908 Active US10324333B2 (en) | 2016-02-22 | 2017-02-17 | Color polarizing film, antireflective film and display device |
Country Status (2)
Country | Link |
---|---|
US (1) | US10324333B2 (en) |
KR (1) | KR102643463B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102521207B1 (en) * | 2020-12-11 | 2023-04-25 | (주)세경하이테크 | Manufacturing method of mobile phone decoration film and mobile phone decoration film manufactured through the same |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025164A (en) * | 1975-03-17 | 1977-05-24 | Bbc Brown Boveri & Company Limited | Liquid crystal display device for colored display of information with a selective polarizer |
US4859039A (en) * | 1984-11-16 | 1989-08-22 | Sumitomo Chemical Company, Limited | Light-polarizing film |
US5892559A (en) * | 1996-11-25 | 1999-04-06 | Colorlink, Inc. | Chromaticity compensating liquid crystal filter |
KR101078598B1 (en) | 2009-02-09 | 2011-11-10 | 웅진케미칼 주식회사 | Coating composition for light polarizing film, light polarizing film using them and manufacturing method thereof |
US20140016198A1 (en) | 2009-05-01 | 2014-01-16 | Nitto Denko Corporation | Method for producing polarizer |
US20140126053A1 (en) * | 2012-11-06 | 2014-05-08 | Samsung Electronics Co., Ltd. | Anti-reflective film and display device including the same |
US20150024149A1 (en) | 2012-01-30 | 2015-01-22 | Konica Minolta, Inc. | Polarizing plate, method for manufacturing polarizing plate and liquid crystal display device |
US20150177562A1 (en) | 2013-12-20 | 2015-06-25 | Apple Inc. | Electronic Device Display With Damage-Resistant Polarizer |
US20150192700A1 (en) | 2014-01-08 | 2015-07-09 | Samsung Electronics Co., Ltd. | Composition for polarizing film, polarizing film and display device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010056082A2 (en) * | 2008-11-14 | 2010-05-20 | 주식회사 엘지화학 | Laminate |
US20140012605A1 (en) * | 2012-07-04 | 2014-01-09 | Vedett Ip Copropration | Method of re-distributing and realizing wealth based on value of intangible assets or other assets |
-
2016
- 2016-02-22 KR KR1020160020862A patent/KR102643463B1/en active IP Right Grant
-
2017
- 2017-02-17 US US15/435,908 patent/US10324333B2/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025164A (en) * | 1975-03-17 | 1977-05-24 | Bbc Brown Boveri & Company Limited | Liquid crystal display device for colored display of information with a selective polarizer |
US4859039A (en) * | 1984-11-16 | 1989-08-22 | Sumitomo Chemical Company, Limited | Light-polarizing film |
US5892559A (en) * | 1996-11-25 | 1999-04-06 | Colorlink, Inc. | Chromaticity compensating liquid crystal filter |
KR101078598B1 (en) | 2009-02-09 | 2011-11-10 | 웅진케미칼 주식회사 | Coating composition for light polarizing film, light polarizing film using them and manufacturing method thereof |
US20140016198A1 (en) | 2009-05-01 | 2014-01-16 | Nitto Denko Corporation | Method for producing polarizer |
US20150024149A1 (en) | 2012-01-30 | 2015-01-22 | Konica Minolta, Inc. | Polarizing plate, method for manufacturing polarizing plate and liquid crystal display device |
US20140126053A1 (en) * | 2012-11-06 | 2014-05-08 | Samsung Electronics Co., Ltd. | Anti-reflective film and display device including the same |
US20150177562A1 (en) | 2013-12-20 | 2015-06-25 | Apple Inc. | Electronic Device Display With Damage-Resistant Polarizer |
US20150192700A1 (en) | 2014-01-08 | 2015-07-09 | Samsung Electronics Co., Ltd. | Composition for polarizing film, polarizing film and display device |
KR20150082942A (en) | 2014-01-08 | 2015-07-16 | 삼성전자주식회사 | Composition for polarizing film and polarizing film and display device |
Non-Patent Citations (1)
Title |
---|
Visible spectrum [online]. Wikipedia, 2018 [retrieved on Sep. 2, 2018]. Retrieved from the Internet:<URL: https://en.wikipedia.org/wiki /Visible_spectrum >. (Year: 2018) (Year: 2018). * |
Also Published As
Publication number | Publication date |
---|---|
US20170242296A1 (en) | 2017-08-24 |
KR20170098655A (en) | 2017-08-30 |
KR102643463B1 (en) | 2024-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10656459B2 (en) | Color polarizing film, antireflective film, and display device | |
US20150378075A1 (en) | Optical film, manufacturing method thereof, and display device | |
US20140168768A1 (en) | Polarizing plate and optical display apparatus including the same | |
US10139534B2 (en) | Optical film, manufacturing method thereof, and display device | |
US9563000B2 (en) | Polarizing plate for OLED and optical display including the same | |
CN107275505B (en) | Organic light emitting diode device, circularly polarizing plate and compensation film | |
KR20160118436A (en) | Organic light emitting diode display | |
US9812670B2 (en) | Polarization film, antireflection film, and display device | |
CN105742319A (en) | Anti-reflective film and organic light-emitting device comprising anti-reflection film | |
US10324333B2 (en) | Color polarizing film, antireflective film and display device | |
US10353129B2 (en) | Optical film and method of manufacturing the same and display device including the same | |
US20150192700A1 (en) | Composition for polarizing film, polarizing film and display device | |
US9335442B1 (en) | Polarizing film and display device including the polarizing film | |
US20160187548A1 (en) | Polarizing film and display device including the polarizing film | |
US20170115516A1 (en) | Optical film and display device | |
US10000604B2 (en) | Polymer and compensation film and optical film and display device | |
KR20210032059A (en) | Pressure-sensitive adhesive composition and the use thereof | |
KR20210032058A (en) | Pressure-sensitive adhesive composition and the use thereof | |
EP2960693B1 (en) | Optical film, manufacturing method thereof, and display device | |
US20160178820A1 (en) | Polarizing film and display device including the same | |
US20160161651A1 (en) | Method of manufacturing polarizing film and polarizing film manufactured using the same | |
US20160187549A1 (en) | Polarizing film, method of manufacturing the same, and display device | |
KR20210037875A (en) | Polarizing plate |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAMSUNG SDI CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MOON, DEUK KYU;LEE, YONG JOO;KANG, YOON-SUK;AND OTHERS;SIGNING DATES FROM 20170106 TO 20170217;REEL/FRAME:041568/0084 Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MOON, DEUK KYU;LEE, YONG JOO;KANG, YOON-SUK;AND OTHERS;SIGNING DATES FROM 20170106 TO 20170217;REEL/FRAME:041568/0084 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
AS | Assignment |
Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SAMSUNG ELECTRONICS CO., LTD.;SAMSUNG SDI CO., LTD.;REEL/FRAME:051381/0016 Effective date: 20191216 Owner name: SAMSUNG SDI CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SAMSUNG ELECTRONICS CO., LTD.;SAMSUNG SDI CO., LTD.;REEL/FRAME:051381/0016 Effective date: 20191216 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 4 |